CN110975049A - Dropping funnel and infusion apparatus with same - Google Patents
Dropping funnel and infusion apparatus with same Download PDFInfo
- Publication number
- CN110975049A CN110975049A CN201911127036.5A CN201911127036A CN110975049A CN 110975049 A CN110975049 A CN 110975049A CN 201911127036 A CN201911127036 A CN 201911127036A CN 110975049 A CN110975049 A CN 110975049A
- Authority
- CN
- China
- Prior art keywords
- exhaust
- dropping funnel
- exhaust pipe
- float
- funnel body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/1412—Burettes, measuring cylinders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a dropping funnel and an infusion apparatus with the same, wherein the dropping funnel comprises a dropping funnel body and an automatic exhaust mechanism, the upper part of the dropping funnel body is provided with an air hole, a protective cover is arranged above the air hole, and the top of the protective cover is provided with a breathable film; the automatic exhaust mechanism comprises an exhaust pipe with a hollow interior and an exhaust floater positioned in the exhaust pipe, wherein through holes are formed in the upper part and the lower part of the exhaust pipe, and the interior of the exhaust pipe is communicated with the interior of the air-permeable dropping funnel body; the top of the exhaust pipe is provided with an exhaust hole, and the exhaust pipe extends downwards from the upper part of the dropping funnel body and is suspended in the dropping funnel body; the top of the exhaust floater is provided with a bulge, and the contour of the bulge is gradually increased from top to bottom, and the contour of the bulge is increased from top to bottom; when the liquid level in the exhaust pipe rises through the dropping funnel, the exhaust floater can float upwards, and the diameter of the vent hole of the air hole is not more than the maximum width of the convex profile.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a dropping funnel and an infusion apparatus with the same.
Background
Intravenous infusion is a common treatment means in hospitals, and is a method for infusing a large amount of sterile liquid, electrolyte and medicine into a body from veins by utilizing the principles of atmospheric pressure and hydrostatic pressure. The infusion apparatus is a common disposable medical consumable used for intravenous infusion and used for establishing a channel between a vein and liquid medicine, and generally comprises a vein needle, a protective cap, an infusion hose, a liquid medicine filter, a flow rate regulator, a dropping funnel, a bottle stopper puncture outfit and an air inlet pipe air filter which are connected. The dropping funnel is a component for temporarily storing liquid, and when liquid medicine begins to enter the dropping funnel, the liquid medicine and air in the dropping funnel can form a gas-liquid mixture easily, the gas-liquid mixture can rapidly enter an infusion pipeline below the dropping funnel to form a bubble phenomenon during infusion, and if the bubbles enter a human body, the bubbles can cause harm to the health of a patient, and medical accidents can be caused when the bubbles are serious. Therefore, in order to perform infusion, it is necessary to completely remove the air bubbles in the infusion tube and then perform infusion. The conventional method in the prior art is that after a bottle stopper puncture outfit is punctured into an infusion bottle stopper, a dropping funnel is inverted or extruded to enable medicine liquid to enter the dropping funnel, and after about half of the liquid is filled into the dropping funnel, the dropping funnel is rapidly restored to a normal use state. Therefore, the design of the dropping funnel and the infusion apparatus capable of automatically exhausting air has important significance.
Chinese patent application CN109893707A discloses a bubble-free full-automatic exhaust infusion apparatus, which realizes automatic exhaust by fixing a filter with exhaust liquid medicine at the lower end of an infusion conduit, and using the flow speed of the liquid medicine from the infusion apparatus to the filter with exhaust liquid medicine to be faster than the flow speed from the filter with exhaust liquid medicine to a water-stop plug, however, the structure of the apparatus is complex, and the requirement for the control degree of the flow rate is high, which results in the high requirement for the precision of the product.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the dropping funnel which can realize automatic exhaust, is convenient to use and has stable and reliable performance.
The invention also provides an infusion apparatus with the dropping funnel.
The dropping funnel comprises a dropping funnel body and an automatic exhaust mechanism, wherein the automatic exhaust mechanism comprises an exhaust pipe with a hollow interior and an exhaust float positioned in the exhaust pipe;
the interior of the exhaust pipe is communicated with the interior of the dropping funnel body, and the top of the exhaust pipe is provided with an exhaust hole;
the top of the exhaust floater is provided with a bulge, and the outline of the bulge is increased from top to bottom;
when the liquid level entering the exhaust pipe through the dropping funnel rises, the exhaust float can float upwards and the diameter of the exhaust hole is not larger than the maximum width of the convex profile.
According to some embodiments of the invention, the exhaust pipe is disposed inside the drip chamber body or on a side wall of the drip chamber body.
According to some embodiments of the present invention, if the exhaust pipe is located inside the dropping funnel body, the exhaust pipe extends downward from the upper part of the dropping funnel body and is suspended inside the dropping funnel body; if the exhaust pipe is positioned on the side wall of the dropping funnel body, the height from the bottom of the exhaust pipe to the bottom of the dropping funnel body is not more than 1/3.
According to some embodiments of the invention, a protective cover with a breathable film on the top is arranged above the vent hole.
According to some embodiments of the invention, a gap exists between the vent pipe and the vent float; preferably, the gap is no greater than 1 mm; preferably not more than 0.5 mm.
According to some embodiments of the invention, the length of the air release float is 1/3-2/3 of the length of the drip chamber.
According to some embodiments of the invention, the vent float is irregularly shaped, and has a lower profile that is larger than an upper profile; preferably, the air release float has a gourd-like shape or the like; the vent float may also be other regular shapes such as cylindrical, etc.
According to some embodiments of the invention, the vented float is hollow inside.
According to some embodiments of the invention, the vent float is a vent float made of a material having a density less than water. According to some embodiments of the invention, the protrusion is conical, frustoconical or hemispherical.
The dropping funnel provided by the embodiment of the invention has at least the following beneficial effects: the dropping funnel has a simple structure, when the liquid level in the dropping funnel rises, air in the dropping funnel gradually enters the exhaust pipe through the through hole on the wall of the exhaust pipe and is exhausted to the outside through the exhaust hole, when the liquid level rises to overflow the exhaust pipe, liquid enters the exhaust pipe through the through hole on the exhaust pipe, the exhaust floater gradually floats upwards along with the rise of the liquid level and gradually blocks the exhaust hole, even the exhaust hole is blocked by interference fit, and the air in the dropping funnel can be automatically exhausted in the process; the scheme of the invention skillfully applies the buoyancy principle, realizes the exhaust process of the drip chamber of the infusion apparatus, does not need manual inversion or extrusion operation, and can keep the liquid level in the drip chamber consistent; when the infusion bottle needs to be exhausted for two or more times in the process of changing the infusion bottle, the air exhaust floater is separated from the air exhaust hole (external force can be used, gravity can be used, and the like), the dropping funnel does not need to be squeezed again or inverted, and the workload of medical staff is reduced.
According to the infusion set of the embodiment of the second aspect of the invention, the drip chamber is contained in the infusion set.
The infusion set provided by the embodiment of the invention at least has the following beneficial effects: the infusion set provided by the scheme of the invention is simple and convenient to operate, stable and reliable in performance, ingenious in structure and simple to operate, reduces the working strength of medical personnel, and simultaneously improves the stability and the safety.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a dropping funnel when a liquid level rises to a certain height in example 1 of the present invention;
FIG. 2 is a schematic structural view of a dropping funnel when a vent hole is blocked by a projection on a vent float in example 1 of the present invention;
fig. 3 is a schematic structural view of a dropping funnel in embodiment 2 of the present invention.
Description of reference numerals:
1. a dropping funnel body; 11. an exhaust hole; 2. a protective cover; 21. a gas permeable membrane; 31. an exhaust pipe; 32. an air exhaust float.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The first embodiment of the invention is as follows: a dropping funnel comprises a dropping funnel body 1 and an automatic exhaust mechanism, wherein an exhaust hole 11 is formed in the upper part or the side wall of an exhaust hole of the dropping funnel body 1, a protective cover 2 is arranged above the exhaust hole 11, a breathable film 21 (only capable of permeating air and avoiding liquid from passing through) is arranged at the top of the protective cover 2, the protective cover 2 is arranged to avoid sundries from falling into the transfusion device to cause pollution to the inside of the transfusion device, and the breathable film is arranged to facilitate escape of air in the exhaust process; the automatic exhaust mechanism comprises an exhaust pipe 31 with a hollow interior and an exhaust float 32 positioned in the exhaust pipe 31, through holes are formed in the upper part, the lower part and the bottom of the exhaust pipe 31, the interior of the exhaust pipe is communicated with the exhaust hole 11, and the exhaust pipe 31 extends downwards from the upper part of the dropping funnel body 1 and is suspended in the dropping funnel body 1; the top of the exhaust floater 32 is provided with a hemispherical bulge, and the outline of the bulge is gradually increased from top to bottom; as shown in fig. 1, when the liquid level entering the exhaust pipe 31 through the dropping funnel rises, the exhaust float 32 can float upward and the diameter of the exhaust hole 11 is not larger than the maximum width of the convex profile; as shown in fig. 2, as the air float 32 continuously rises, the air float 32 and the air vent 11 are attached more and more tightly (even in interference fit), so as to block the air vent 11, and the air in the drip chamber can be automatically exhausted in the process.
The exhaust pipe 31 is provided with at most one through hole at the same height, and only one through hole is arranged at the same height, so that direct convection impact of liquid is avoided, and the influence on exhaust of flowing liquid is avoided.
The diameter of the through hole at the bottom is not larger than the diameter of the air release float 32, so that the air release float 32 is prevented from separating from the air release pipe 31 from the through hole at the bottom.
The exhaust pipe and the exhaust float are regular cylinders, the diameter difference between the inner diameter of the exhaust pipe 31 and the diameter difference between the exhaust float 32 are 0.8mm, the exhaust float is located in the middle of the exhaust pipe, the diameter difference between the inner diameter of the exhaust pipe 31 and the diameter difference between the exhaust float 32 are controlled within a range, and the exhaust float 32 is prevented from toppling over to influence the automatic exhaust effect.
The length of the exhaust float 32 is 1/3 of the length of the dropping funnel, and the length of the exhaust float 32 is controlled within a certain range, so that the exhaust pipe 31 can better exhaust the air in the dropping funnel.
The second embodiment of the invention is as follows: a dropping funnel, as shown in fig. 3, which is different from the first embodiment in that: the exhaust pipe 31 is arranged on the side wall of the dropping funnel body 1, an opening is arranged on the side wall, and the opening is communicated with the exhaust pipe. The exhaust floater is in an inverted T shape (can also be in a capacity bottle shape or a calabash shape), the exhaust floater is positioned in the middle of the exhaust pipe, gaps are respectively reserved between two sides of the lower part of the exhaust floater and the exhaust pipe, and the gap on each side is 0.3 mm. The calabash-shaped exhaust floater is adopted, the large volume of the lower part is utilized, the buoyancy is increased, and the exhaust floater is more beneficial to floating.
The third embodiment of the invention is as follows: a drip chamber, which differs from the first embodiment in that: be equipped with air filter membrane in the through-hole on blast pipe 31 upper portion, upper portion sets up air filter membrane to in the air in the dropping funnel gets into blast pipe 31 better, avoid the liquid level too high simultaneously.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a dropping funnel, includes the dropping funnel body, its characterized in that: the automatic exhaust mechanism comprises an exhaust pipe with a hollow interior and an exhaust float positioned in the exhaust pipe, and the interior of the exhaust pipe is communicated with the interior of the dropping funnel body; the top of the exhaust pipe is provided with an exhaust hole; the top of the exhaust floater is provided with a bulge, and the outline of the bulge is increased from top to bottom;
when the liquid level entering the exhaust pipe through the dropping funnel rises, the exhaust float can float upwards and the diameter of the exhaust hole is not larger than the maximum width of the convex profile.
2. The drip chamber of claim 1, wherein: the exhaust pipe is arranged inside the dropping funnel body or on the side wall of the dropping funnel body.
3. The drip chamber of claim 2, wherein: if the exhaust pipe is positioned in the dropping funnel body, the exhaust pipe extends downwards from the upper part of the dropping funnel body and is suspended in the dropping funnel body; if the exhaust pipe is positioned on the side wall of the dropping funnel body, the height from the bottom of the exhaust pipe to the bottom of the dropping funnel body is not more than 1/3.
4. The drip chamber of claim 1, wherein: and a protective cover with a breathable film at the top is arranged above the exhaust hole.
5. The drip chamber of claim 1, wherein: a gap is formed between the exhaust pipe and the exhaust float.
6. The drip chamber of claim 1, wherein: the length of the exhaust floater is 1/3-2/3 of the length of the drip chamber.
7. The drip chamber of claim 1, wherein: the exhaust float is irregular in shape, and the lower profile is larger than the upper profile.
8. The drip chamber of claim 1, wherein: the inside of the exhaust float is hollow.
9. The drip chamber of claim 1, wherein: the air release float is made of a material with density less than that of water.
10. An infusion set is characterized in that: the infusion set comprises the drip chamber of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127036.5A CN110975049A (en) | 2019-11-18 | 2019-11-18 | Dropping funnel and infusion apparatus with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127036.5A CN110975049A (en) | 2019-11-18 | 2019-11-18 | Dropping funnel and infusion apparatus with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110975049A true CN110975049A (en) | 2020-04-10 |
Family
ID=70084936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911127036.5A Pending CN110975049A (en) | 2019-11-18 | 2019-11-18 | Dropping funnel and infusion apparatus with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110975049A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336916B1 (en) * | 1996-05-01 | 2002-01-08 | Pall Corporation | Priming system |
| CN101337098A (en) * | 2008-08-11 | 2009-01-07 | 张孟赐 | Automatic vent intravenous transfusion device for medical purpose |
| CN101806373A (en) * | 2004-07-15 | 2010-08-18 | 伊顿公司 | Be used to control the float control outlet valve of the vapor discharge of fuel tank |
| CN101954132A (en) * | 2010-09-30 | 2011-01-26 | 戎静华 | Exhaust device for blood-returning preventive infusion device |
| CN202168987U (en) * | 2011-07-18 | 2012-03-21 | 河南曙光健士医疗器械集团有限公司 | Disposable self-exhausting and self-stopping infusion apparatus |
| CN202277566U (en) * | 2011-10-13 | 2012-06-20 | 魏安 | Blood backflow-preventing medical transfusion device capable of multiple self exhausting |
| CN102755683A (en) * | 2012-06-26 | 2012-10-31 | 戎静华 | Infusion apparatus |
| CN103705998A (en) * | 2014-01-08 | 2014-04-09 | 龙宏元 | Differential pressure type nursing-free infusion set automatically replacing bottles and monitoring system |
| CN204092699U (en) * | 2014-08-14 | 2015-01-14 | 山东颐兴医疗器械有限公司 | New type auto Liquid level, from only liquid transfusion device |
| GB2516532A (en) * | 2011-10-13 | 2015-01-28 | Carefusion Corp | Fluid trap and method of separating fluids |
| CN105268062A (en) * | 2015-12-02 | 2016-01-27 | 玉环县安尔康橡胶有限公司 | Drip chamber of infusion apparatus |
| CN206700465U (en) * | 2016-12-05 | 2017-12-05 | 韩晓勤 | Infusion unit titrimeter and its infusion device |
| CN108478904A (en) * | 2018-04-28 | 2018-09-04 | 京东方科技集团股份有限公司 | A kind of exhaust component and conduit and syringe including it |
| CN109893707A (en) * | 2019-04-16 | 2019-06-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of bubble-free, full-automatic exhaust infusion set |
| CN209033351U (en) * | 2018-06-21 | 2019-06-28 | 马燕飞 | Automatic liquid-stopping transfusion apparatus |
| WO2019175272A1 (en) * | 2018-03-15 | 2019-09-19 | Fresenius Medical Care Deutschland Gmbh | Medical fluid receptacle designed for automatic fluid level setting |
-
2019
- 2019-11-18 CN CN201911127036.5A patent/CN110975049A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336916B1 (en) * | 1996-05-01 | 2002-01-08 | Pall Corporation | Priming system |
| CN101806373A (en) * | 2004-07-15 | 2010-08-18 | 伊顿公司 | Be used to control the float control outlet valve of the vapor discharge of fuel tank |
| CN101337098A (en) * | 2008-08-11 | 2009-01-07 | 张孟赐 | Automatic vent intravenous transfusion device for medical purpose |
| CN101954132A (en) * | 2010-09-30 | 2011-01-26 | 戎静华 | Exhaust device for blood-returning preventive infusion device |
| CN202168987U (en) * | 2011-07-18 | 2012-03-21 | 河南曙光健士医疗器械集团有限公司 | Disposable self-exhausting and self-stopping infusion apparatus |
| GB2516532A (en) * | 2011-10-13 | 2015-01-28 | Carefusion Corp | Fluid trap and method of separating fluids |
| CN202277566U (en) * | 2011-10-13 | 2012-06-20 | 魏安 | Blood backflow-preventing medical transfusion device capable of multiple self exhausting |
| CN102755683A (en) * | 2012-06-26 | 2012-10-31 | 戎静华 | Infusion apparatus |
| CN103705998A (en) * | 2014-01-08 | 2014-04-09 | 龙宏元 | Differential pressure type nursing-free infusion set automatically replacing bottles and monitoring system |
| CN204092699U (en) * | 2014-08-14 | 2015-01-14 | 山东颐兴医疗器械有限公司 | New type auto Liquid level, from only liquid transfusion device |
| CN105268062A (en) * | 2015-12-02 | 2016-01-27 | 玉环县安尔康橡胶有限公司 | Drip chamber of infusion apparatus |
| CN206700465U (en) * | 2016-12-05 | 2017-12-05 | 韩晓勤 | Infusion unit titrimeter and its infusion device |
| WO2019175272A1 (en) * | 2018-03-15 | 2019-09-19 | Fresenius Medical Care Deutschland Gmbh | Medical fluid receptacle designed for automatic fluid level setting |
| CN108478904A (en) * | 2018-04-28 | 2018-09-04 | 京东方科技集团股份有限公司 | A kind of exhaust component and conduit and syringe including it |
| CN209033351U (en) * | 2018-06-21 | 2019-06-28 | 马燕飞 | Automatic liquid-stopping transfusion apparatus |
| CN109893707A (en) * | 2019-04-16 | 2019-06-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of bubble-free, full-automatic exhaust infusion set |
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Application publication date: 20200410 |